Acting • AGE 79
From Wikipedia, the free encyclopedia. Michael O'Neill (born May 29, 1951) is an American actor. With a career stretching through three decades, he usually portrays senior law enforcement or militar...


War of the Worlds
Secretary of Defense Walter Crystal
2025

Bride Hard
Frank
2025

Happy Face
D.A. Craig Calloway
2025

Happy's Place
Jim Jackoway
2024

Tracker
Buck Avery
2024

Air
Joe Dean
2023

Fire Country
Harlan Denbo
2022

Echoes
Victor McCleary
2022

Outer Range
Judge Pettigrew
2022

Cold Call
Christian
2021

The Stand at Paxton County
Dell Connelly
2020

Messiah
Cameron Collier
2020

Clemency
Chaplain David Kendricks
2019

Indivisible
Chaplain Rogers
2018

The Romanoffs
Ron Hopkins
2018

Danger One
Beckwith
2018

Tom Clancy's Jack Ryan
Senator Mitchell Chapin
2018

The Resident
Joshua Williams
2018

S.W.A.T.
Carl Luca
2017

On Yoga: The Architecture of Peace
Producer
2017

Shooter
Ray Brooks
2016

This Is Us
Arlo
2016

11.22.63
Arliss Price
2016

Manhattan
Psychiatrist
2014

Extant
Alan Sparks
2014

The Grim Sleeper
Detective Simms
2014

Dallas Buyers Club
Richard Barkley
2013

Rectify
Senator Roland Foulkes
2013

Bates Motel
Nick Ford
2013

Vegas
Mayor Ted Bennett
2012

Scandal
Lonnie Mencken
2012

J. Edgar
Senator McKellar
2011

Law & Order: LA
Jeb Monroe
2010

Rizzoli & Isles
Jonathan McKnight
2010

The Glades
Trent Staley
2010

Green Zone
Colonel Bethel
2010

Flying Lessons
Chief Dobbs
2010

FlashForward
CIA Director Keller
2009

NCIS: Los Angeles
Ret. U.S. Army General Richard Collins
2009

Nothing but the Truth
CIA Director
2008

Leverage
Judge Roy
2008

A Quiet Little Marriage
Bruce
2008

The Mentalist
Sheriff Nelson
2008

Fringe
Sheriff Velchik
2008

Sons of Anarchy
Anthony Franklin
2008

Crazy
Ralph Christianson
2008

Transformers
Tom Banacheck
2007

Army Wives
Reverend Bankerd
2007

The Nine
Pete Burton
2006

The Unit
Ron Cheals
2006

Commander in Chief
Congressman Wilcox
2005

Ghost Whisperer
Nolan
2005

Criminal Minds
Det. Yarbough
2005

Close to Home
Don Wheeler
2005

Prison Break
Herb Stanton
2005

Grey's Anatomy
Gary Clark
2005

Numb3rs
Boyd Keene
2005

Around the Bend
Cowboy
2004

Boston Legal
Dr. Robert McLean
2004

LAX
Alonso Mathews
2004

American Crime
Sheriff Smyth
2004

NCIS
Riley McCallister
2003

Secondhand Lions
Ralph
2003

Seabiscuit
Mr. Pollard
2003

Dreamcatcher
Gen. Matheson
2003

The Emperor's Club
Co-Producer
2002

Without a Trace
Thomas Shannon
2002

CSI: Miami
Jerry Blackburn
2002

24
Richard Walsh
2001

Crossing Jordan
Chris Benz
2001

Traffic
Lawyer Rodman
2000

The Legend of Bagger Vance
O.B. Keeler
2000

Boston Public
Dr. Bernard Colbert
2000

Roswell
Philip Evans
1999

The West Wing
Ron Butterfield
1999

ATF
ATF Asst. Director Ben Walker
1999

The Mod Squad
Greene
1999

Dancer, Texas Pop. 81
Mr. Lusk
1998

Virtual Obsession
1998

Standoff
Cult Leader (Voice)
1998

Ally McBeal
Dr. Colbert
1997

The Shining
Daniel Edwards (uncredited)
1997

The Practice
Judge Robert Temple
1997

Millennium
County Prosecutor Calvin Smith
1996

The Sunchaser
Agent Moreland
1996

JAG
Commander Bradley
1995

Bushwhacked
Jon Jordan
1995

Awake to Danger
Detective Brickman
1995

Beyond Betrayal
Ray Pasquerello
1994

ER
Col. Ken Kilner
1994

Chicago Hope
Bill Wyzinski
1994

One West Waikiki
1994

Blind Justice
Spencer Heymen
1994

Victim of Love: The Shannon Mohr Story
Dick Britton
1993

Diagnosis: Murder
Sheriff Buck O'Hara
1993

The X-Files
Patrol Captain Van Gelder
1993

For Their Own Good
Clark Thompson
1993

Lorenzo's Oil
School Psychologist
1992

Jennifer Eight
Serato
1992

The Gun in Betty Lou's Handbag
Jergens
1992

An Unremarkable Life
Michael
1989

Sea of Love
Raymond Brown
1989

Ghost Story
Churchill
1981